| Patent application number | Description | Published |
|---|
| 20090010101 | Seismic streamer having longitudinally symmetrically sensitive sensors to reduce effects of longitudinally traveling waves - A seismic streamer includes a jacket and at least one seismic sensor disposed in a sensor holder inside the jacket. The at least one sensor is oriented inside the sensor holder such that a response of the at least one sensor is substantially longitudinally symmetric. | 01-08-2009 |
| 20090262601 | Methods for controlling towed marine sensor array geometry - A method for towing a streamer array includes moving a vessel along a body of water. Streamers are towed by vessel. A relative position is determined at selected points along each streamer with respect to the vessel. At least one of the streamers is deflected at at least one longitudinal position along the streamer in response to the determined positions to maintain the streamers in a selected geometry. The selected geometry is related to one of survey vessel heading, energy source trajectory, previously plotted sensor trajectory and a lateral separation related to distance from the towing vessel. | 10-22-2009 |
| 20100165792 | Marine seismic streamer cable with noise suppressing sensor support - A seismic streamer includes at least one elongated strength member. The seismic streamer further includes a substantially rigid sensor holder coupled to the strength member and fixed in position relative to the strength member. The streamer includes at least one particle motion sensor coupled to the sensor holder and fixed in position relative to the sensor holder. | 07-01-2010 |
| 20100172205 | Combined electromagnetic and seismic acquisition system and method - A method for marine geophysical surveying according to one aspect of the invention includes towing at least one geophysical sensor streamer in a body of water. The streamer includes a plurality of spaced apart electromagnetic field receivers disposed at spaced apart locations along the streamer. The streamer also includes a plurality of seismic sensors disposed at spaced apart locations. The seismic sensors each include at least one pressure responsive receiver and at least one particle motion responsive receiver. At selected times, a seismic energy source is actuated in the water. Particle motion and pressure seismic signals, and electromagnetic field signals are detected at the respective receivers. | 07-08-2010 |
| 20100224405 | System and method for using magnets for protecting towed marine seismic equipment from shark bite - A system comprises marine seismic equipment adapted for towing through a body of water and at least one magnet attached to the marine seismic equipment. A method comprises towing marine seismic equipment having at least one magnet attached thereto. | 09-09-2010 |
| 20110149683 | Combined impulsive and non-impulsive seismic sources - A method for seismic exploration of subsurface rock formations includes actuating an impulsive seismic energy source proximate the rock formations. A non-impulsive seismic energy source is actuated. A near field waveform of each of the impulsive and non-impulsive seismic energy sources is detected. A far field waveform of the combined output of the impulsive and non-impulsive seismic energy sources is determined from the near field waveforms. An impulse response of the subsurface rock formations is determined by deconvolving the far field waveform with detected seismic signals. | 06-23-2011 |
